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Ninth Grade (Grade 9) Microbiology Questions

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Grade 9 Microbiology
Viral DNA is integrated into the DNA of the infected cell (host cell) in a                 infection.
  1. lysic
  2. lysogenic
  3. lytic
  4. prophasic
Grade 9 Microbiology
The protein coat of a virus contains the genetic material that allows it to make new viruses.
  1. True
  2. False
Grade 9 Microbiology
The protein coat that surrounds the nucleic acids in a virus is the
  1. capsid.
  2. peptidoglycan.
  3. plasma membrane.
  4. virophage.
Grade 9 Microbiology
Which substance is in the cell walls of Eubacteria?
  1. peptidoglycan
  2. chlorophyll
  3. chitin
  4. cellulose
Grade 9 Microbiology
What are prions and viroids?
  1. Prions are believed to be misfolded proteins that are commonly found in brain tissue and that cause incurable disease in animals. Viroids are small circular RNA molecules that infect plants.
  2. Viroids are believed to be misfolded proteins that are commonly found in brain tissue and that cause incurable disease in animals. Prions are small circular RNA molecules that infect plants.
  3. Prions refer to larger viruses, whereas viroids represent smaller viruses.
  4. Prions and viroids are both proteins that help to fight viral infections found in various plant species.
Grade 9 Microbiology
A new kingdom was discovered when                 were viewed under a microscope.
  1. plants
  2. fungi
  3. microorganisms
  4. cells
Grade 9 Microbiology
Viruses are capable of growth and multiplication only in living cells and cause various important diseases in humans, lower animals, and plants.
  1. True
  2. False
Grade 9 Microbiology
Organisms in the kingdom Eubacteria are unicellular.
  1. True
  2. False
Grade 9 Microbiology
A host is an organism that supplies energy to a virus or other organism.
  1. True
  2. False
Grade 9 Microbiology
Eubacterial diseases spread through
  1. food, saliva, or blood.
  2. blood, waste, or air.
  3. air, saliva, or water.
  4. water, food, or air.
Grade 9 Microbiology
What is a capsid made of?
  1. protein
  2. glucose
  3. peptidoglycan
  4. adenosine triphosphate
Grade 9 Microbiology
Archaebacteria is not as common as Eubacteria. Organisms are single celled and have no nucleus or membrane-bound organelles. Some have flagella.
  1. True
  2. False
Grade 9 Microbiology
What is the suffix, or ending, for the family name of a virus?
  1. -virales
  2. -virus
  3. -viridae
  4. -virinae
Grade 9 Microbiology
During a lysogenic infection, the prophage is activated and the infection enters the
  1. bacteria.
  2. cytoplasm.
  3. host cell.
  4. lytic cycle.
Grade 9 Microbiology
                such as HIV may remain dormant for extended periods of time.
  1. Bacterium
  2. DNA
  3. Prophages
  4. Retroviruses
Grade 9 Microbiology
An antibody created in response to one flu virus might not bind to a different flu virus because
  1. antibodies tend to break down over time.
  2. the antigens on the virus may be different.
  3. each flu virus affects different tissues in the body.
  4. some viruses are affected by T cell antibodies, and others are affected by B cells.
Grade 9 Microbiology
Scientists make viruses that help people through gene therapy by producing viruses that carry genetic material into the cells that need it.
  1. True
  2. False
Grade 9 Microbiology
Organisms in the kingdom Archaebacteria are multicellular.
  1. True
  2. False
Grade 9 Microbiology
Examples of prokaryotes are
  1. cells and fungi.
  2. bacteria, fungi, and Streptococcus.
  3. Spirella, Streptococcus, and Nostoc.
  4. Streptococcus, algae, and soft tissue.
Grade 9 Microbiology
Spiral-shaped viruses are called
  1. complex.
  2. helical.
  3. polyhedral.
  4. spirilla.
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